Dr. Bruce A. Beutler // 2011
Innate Immunity
Dr. Beutler shared the Nobel Prize in Physiology or Medicine in 2011 for his discovery of how the immune system is activated. When bacteria, viruses, and other microorganisms attack the body, receptor proteins recognize such microorganisms and activate innate immunity, the first step in the body’s immune response. Through a series of experiments, Dr. Beutler revealed how cells detect infection and how the innate immune system is activated in response to infection. His work helped open new avenues for the development of therapies against infections, cancer, and inflammatory diseases.